What does cathode mean?

Definitions for cathode
ˈkæθ oʊdcath·ode

Here are all the possible meanings and translations of the word cathode.

Princeton's WordNet

  1. cathodenoun

    a negatively charged electrode that is the source of electrons entering an electrical device

  2. cathodenoun

    the positively charged terminal of a voltaic cell or storage battery that supplies current


  1. cathodenoun

    the electrode of an electrochemical cell at which reduction occurs

    Etymology: From κάθοδος.

  2. cathodenoun

    the electrode through which current flows out of a device or cell (the negative terminal of an electrolytic cell or the positive terminal of a galvanic cell)

    Etymology: From κάθοδος.

  3. cathodenoun

    (considered incorrect usage by some) the terminal through which current flows out of a diode when current is in the forward direction regardless of the direction the current is actually flowing

    Etymology: From κάθοδος.

Webster Dictionary

  1. Cathodenoun

    the part of a voltaic battery by which the electric current leaves substances through which it passes, or the surface at which the electric current passes out of the electrolyte; the negative pole; -- opposed to anode

    Etymology: [Gr. descent; down + way.]


  1. Cathode

    A cathode is an electrode through which electric current flows out of a polarized electrical device. The direction of electric current is, by convention, opposite to the direction of electron flow. This convention is sometimes remembered using the mnemonic CCD for cathode current departs. Cathode polarity is not always negative. Although positively charged cations always move towards the cathode and negatively charged anions move away from it, cathode polarity depends on the device type, and can even vary according to the operating mode. In a device which consumes power, the cathode is negative, and in a device which provides power, the cathode is positive: ⁕In a discharging battery or a galvanic cell the cathode is the positive terminal since that is where the current flows out of the device. This outward current is carried internally by positive ions moving from the electrolyte to the positive cathode. It is continued externally by electrons moving inwards, negative charge moving one way constituting positive current flowing the other way. For example, the Daniell galvanic cell's copper electrode is the positive terminal and the cathode.

Chambers 20th Century Dictionary

  1. Cathode

    kath-ōd′, n. the negative pole or electrode of a galvanic battery, as opposed to anode: the surface in contact with the negative pole: the object to be coated in electroplating—adj. Cath′odal. [Gr. kathodos, a going down, kata, down, hodos, a way.]

Matched Categories

How to pronounce cathode?

How to say cathode in sign language?


  1. Chaldean Numerology

    The numerical value of cathode in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of cathode in Pythagorean Numerology is: 2

Examples of cathode in a Sentence

  1. Gore Vidal:

    The last best hope of earth, two trillion dollars in debt, is spinning out of control, and all we can do is stare at a flickering cathode-ray tube as Ollie answers questions on TV while the press, resolutely irrelevant as ever, asks politicians if they have committed adultery. From V-J Day 1945 to this has been, my fellow countrymen, a perfect nightmare.

Images & Illustrations of cathode

  1. cathodecathodecathodecathodecathode

Popularity rank by frequency of use


Translations for cathode

From our Multilingual Translation Dictionary

Get even more translations for cathode »


Find a translation for the cathode definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:

Discuss these cathode definitions with the community:



    Use the citation below to add this definition to your bibliography:


    "cathode." Definitions.net. STANDS4 LLC, 2021. Web. 26 Nov. 2021. <https://www.definitions.net/definition/cathode>.

    Are we missing a good definition for cathode? Don't keep it to yourself...

    Browse Definitions.net

    Free, no signup required:

    Add to Chrome

    Get instant definitions for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant definitions for any word that hits you anywhere on the web!


    Are you a words master?

    the work of inquiring into something thoroughly and systematically
    • A. accommodation
    • B. investigating
    • C. rogue
    • D. disguise

    Nearby & related entries:

    Alternative searches for cathode: